I tried running the firmware updater program but got the error message <server not available> or something like that. However, I think I have solved the problem. I hooked the Sansa c250 to an XP computer, and I was able to see aall the mp3s. Then I moved all the mp3s from the Sansa c250 to a USB flash drive. Then, I plugged both the Sansa c250 AND the flash drive into my WIndows 7 PC, and moved the mp3s back to the Sansa c250 from the flash drive, and VOILA! I can now see the mp3s on the Sansa device from my Windows 7 PC.
Thanks for all the assistance here!
